Sections View Full Chapter Figures Tables Videos Annotate Full Chapter Figures Tables Videos Supplementary Content +++ Anatomy of the Lumbopelvic Spine +++ Superior View ++ +++ Lateral View ++ +++ Anterior View ++ +++ Posterior View ++ +++ Physiologic (Osteokinematic) Motions of Lumbopelvic Spine +++ Operant Definitions ++ Iliosacral (I/S) motion: Motion of ilium in reference to sacrum Sacroilial (S/I) motion: Motion of sacrum in reference to ilium Reference for lumbar motion is superior vertebra of motion segment Reference for I/S motion is ASIS Reference for S/I motion is anterior base of sacrum I/S anterior/posterior ROT (tilt): Motion of ASIS anterior/inferior & posterior/superior in sagittal plane I/S inflare/outflare: Motion of ASIS medially & laterally in transverse plane I/S upslip/downslip: Motion of ASIS superiorly & inferiorly in frontal plane S/I flexion/extension (nutation/counternutation): Motion of sacral base anterior & posterior in sagittal plane S/I SB: Motion of sacral base in frontal plane S/I ROT: Motion of sacral base in transverse plane S/I forward/backward torsion: Triplanar motion of sacral sulcus anteriorly & posteriorly about an oblique axis +++ Coupled/Combined Motion ++ Lumbar SB & ROT occur contralaterally in neutral Lumbar SB & ROT occur ipsilaterally out of neutral Hip motion coupled with ilial (I/S) motion Lumbar motion coupled with sacral (S/I) motion Lumbar segmental maximal facet opening (R) occurs with FB, SB (L), ROT (R) Lumbar segmental maximal facet closing (R) occurs with BB, SB (R), ROT (L) +++ Coupled Joint Motions ++ Table Graphic Jump Location|Download (.pdf)|Print Motion Innominate (I/S) Sacrum (S/I) Hip flex Ipsilateral posterior ROT Ø Hip ext Ipsilateral anterior ROT Ø Hip IR Ipsilateral inflare Ø Hip ER Ipsilateral outflare Ø Lumbar FB Anterior ROT Ext, then flex Lumbar BB Posterior ROT Flex, then ext Lumbar ROT Ipsilateral posterior ROT & contralateral anterior ROT Ipsilateral ROT Lumbar SB Ipsilateral anterior ROT & contralateral posterior ROT Ipsilateral SB +++ Physiologic (Osteokinematic) Motions of the Lumbopelvic Spine ++ Table Graphic Jump Location|Download (.pdf)|Print Joint Normal ROM OPP CPP Normal End Feel(s) Capsular Pattern Lumbar FB = 40°–60° BB = 20°–35° SB = 15°–20° ROT = 3°–18° FB, contralateral SB, & ipsilateral ROT BB, ipsilateral SB, & contralateral ROT Elastic Limited in FB, contralateral SB, & ipsilateral ROT S/I & I/S Angular motion = 3°–20° Translatory motion = 0.5–8.0 mm Triplanar 5°–8° Max hip ER Max hip IR +++ Accessory (Arthrokinematic) Motions of the Lumbopelvic Spine ++ Table Graphic Jump Location|Download (.pdf)|Print Arthrology Arthrokinematics Lumbar Primarily sagittal plane orientation with superior facets of inferior vertebra facing medially & inferior facets of superior vertebra facing laterally FB Inferior facet of superior vertebra glides up & forward on superior facet of ... Your Access profile is currently affiliated with [InstitutionA] and is in the process of switching affiliations to [InstitutionB]. Please select how you would like to proceed. Keep the current affiliation with [InstitutionA] and continue with the Access profile sign in process Switch affiliation to [InstitutionB] and continue with the Access profile sign in process Get Free Access Through Your Institution Learn how to see if your library subscribes to McGraw Hill Medical products. Subscribe: Institutional or Individual Sign In Error: Incorrect UserName or Password Username Error: Please enter User Name Password Error: Please enter Password Sign in Forgot Password? Forgot Username? Sign in via OpenAthens Sign in via Shibboleth You already have access! Please proceed to your institution's subscription. Create a free profile for additional features.